<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="菜品名称" prop="name">
        <el-input
            v-model="queryParams.name"
            placeholder="请输入菜品名称"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="售卖状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择售卖状态" clearable>
          <el-option
              v-for="dict in dish_status"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>
    
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
            v-hasPermi="['merchant:dish:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['merchant:dish:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['merchant:dish:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="warning"
            plain
            icon="Download"
            @click="handleExport"
            v-hasPermi="['merchant:dish:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>
    
    <el-table v-loading="loading" :data="dishList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <!-- <el-table-column label="主键" align="center" prop="id" />-->
      <el-table-column label="菜品名称" align="center" prop="name"/>
      <el-table-column label="售价" align="center">
        <template #default="scope">
          ￥{{ scope.row.price }}
        </template>
      </el-table-column>
      <el-table-column/>
      <el-table-column label="图片" align="center" prop="image" width="100">
        <template #default="scope">
          <image-preview :src="scope.row.image" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="售卖状态" align="center" prop="status">
        <template #default="scope">
          <dict-tag :options="dish_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)"
                     v-hasPermi="['merchant:dish:edit']">修改
          </el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)"
                     v-hasPermi="['merchant:dish:remove']">删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />
    
    <!-- 添加或修改菜品管理对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="dishRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="菜品名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入菜品名称"/>
        </el-form-item>
        <el-form-item label="售价" prop="price">
          <el-input v-model="form.price" placeholder="请输入售价"/>
        </el-form-item>
        <el-form-item label="图片" prop="image">
          <image-upload v-model="form.image"/>
        </el-form-item>
        <el-form-item label="描述信息" prop="description">
          <el-input v-model="form.description" placeholder="请输入描述信息"/>
        </el-form-item>
        <el-form-item label="售卖状态" prop="status">
          <el-select v-model="form.status" placeholder="请选择售卖状态">
            <el-option
                v-for="dict in dish_status"
                :key="dict.value"
                :label="dict.label"
                :value="parseInt(dict.value)"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-divider content-position="center">菜品口味关系信息</el-divider>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button type="primary" icon="Plus" @click="handleAddDishFlavor">添加</el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button type="danger" icon="Delete" @click="handleDeleteDishFlavor">删除</el-button>
          </el-col>
        </el-row>
        <el-table :data="dishFlavorList" :row-class-name="rowDishFlavorIndex"
                  @selection-change="handleDishFlavorSelectionChange" ref="dishFlavor">
          <el-table-column type="selection" width="50" align="center"/>
          <el-table-column label="序号" align="center" prop="index" width="50"/>
          <el-table-column label="口味名称" prop="name" width="150">
            <template #default="scope">
              <!--<el-input v-model="scope.row.name" placeholder="请输入口味名称"/>-->
              <el-select v-model="scope.row.name" placeholder="请选择口味名称"
              @change="changeFlavorName(scope.row)">
                <el-option
                    v-for="dishFlavor in dishFlavorListSelect"
                    :key="dishFlavor.name"
                    :label="dishFlavor.name"
                    :value="dishFlavor.name"
                ></el-option>
              </el-select>
            </template>
          </el-table-column>
          <el-table-column label="口味列表" prop="value" width="150">
            <template #default="scope">
              <!--<el-input v-model="scope.row.value" placeholder="请输入口味列表"/>-->
              <el-select v-model="scope.row.value" placeholder="请选择口味列表" multiple>
                <el-option
                    v-for="value in checkValueList"
                    :key="value"
                    :label="value"
                    :value="value"
                ></el-option>
              </el-select>
            </template>
          </el-table-column>
        </el-table>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Dish">
  import {listDish, getDish, delDish, addDish, updateDish} from "@/api/merchant/dish";
  
  const {proxy} = getCurrentInstance();
  const {dish_status} = proxy.useDict('dish_status');
  
  const dishList = ref([]);
  const dishFlavorList = ref([]);
  const open = ref(false);
  const loading = ref(true);
  const showSearch = ref(true);
  const ids = ref([]);
  const checkedDishFlavor = ref([]);
  const single = ref(true);
  const multiple = ref(true);
  const total = ref(0);
  const title = ref("");
  
  const data = reactive({
    form: {},
    queryParams: {
      pageNum: 1,
      pageSize: 10,
      name: null,
      status: null,
    },
    rules: {
      name: [
        {required: true, message: "菜品名称不能为空", trigger: "blur"}
      ],
      price: [
        {required: true, message: "售价不能为空", trigger: "blur"}
      ],
      image: [
        {required: true, message: "图片不能为空", trigger: "blur"}
      ],
      status: [
        {required: true, message: "售卖状态不能为空", trigger: "change"}
      ],
    }
  });
  
  const {queryParams, form, rules} = toRefs(data);
  //-----------------------------------------
  //定义口味名称和口味列表的静态数据
  const dishFlavorListSelect = ref([
    {
      name: "辣度",
      value: ["不辣", "微辣", "中辣", "重辣"]
    },
    {
      name: "忌口",
      value: ["不要葱", "不要蒜", "不要香菜", "不要辣"]
    },
    {
      name: "甜味",
      value: ["无糖", "少糖", "半糖", "多糖"]
    }
  ]);
  //存储当前选中口味列表的数组
  const checkValueList = ref([]);
  //定义改变口味名称时，更新当前选中的口味列表
  const changeFlavorName = (row) => {
    //清空当前行的value
    row.value = [];
    //根据选中的name去查找静态数据的value
    checkValueList.value = dishFlavorListSelect.value.find(item => item.name === row.name).value;
    
  };
  //-----------------------------------------
  
  /** 查询菜品管理列表 */
  function getList() {
    loading.value = true;
    listDish(queryParams.value).then(response => {
      dishList.value = response.rows;
      total.value = response.total;
      loading.value = false;
    });
  }
  
  // 取消按钮
  function cancel() {
    open.value = false;
    reset();
  }
  
  // 表单重置
  function reset() {
    form.value = {
      id: null,
      name: null,
      price: null,
      image: null,
      description: null,
      status: null,
      createTime: null,
      updateTime: null
    };
    dishFlavorList.value = [];
    proxy.resetForm("dishRef");
  }
  
  /** 搜索按钮操作 */
  function handleQuery() {
    queryParams.value.pageNum = 1;
    getList();
  }
  
  /** 重置按钮操作 */
  function resetQuery() {
    proxy.resetForm("queryRef");
    handleQuery();
  }
  
  // 多选框选中数据
  function handleSelectionChange(selection) {
    ids.value = selection.map(item => item.id);
    single.value = selection.length != 1;
    multiple.value = !selection.length;
  }
  
  /** 新增按钮操作 */
  function handleAdd() {
    reset();
    open.value = true;
    title.value = "添加菜品管理";
  }
  
  /** 修改按钮操作 */
  function handleUpdate(row) {
    reset();
    const _id = row.id || ids.value
    getDish(_id).then(response => {
      form.value = response.data;
      dishFlavorList.value = response.data.dishFlavorList;
      //将口味列表中的value字符串通过json的工具类转化数组
      if ( dishFlavorList.value!=null){
      dishFlavorList.value.forEach(item=> {
        item.value = JSON.parse(item.value);
      })
      }
      open.value = true;
      title.value = "修改菜品管理";
    });
  }
  
  /** 提交按钮 */
  function submitForm() {
    proxy.$refs["dishRef"].validate(valid => {
      if (valid) {
        form.value.dishFlavorList = dishFlavorList.value;
        if ( form.value.dishFlavorList!=null){
        //将口味列表中的value通过json的工具类转化为字符串
        form.value.dishFlavorList.forEach(item=> {
          item.value = JSON.stringify(item.value);
        })
        }
        if (form.value.id != null) {
          updateDish(form.value).then(response => {
            proxy.$modal.msgSuccess("修改成功");
            open.value = false;
            getList();
          });
        } else {
          addDish(form.value).then(response => {
            proxy.$modal.msgSuccess("新增成功");
            open.value = false;
            getList();
          });
        }
      }
    });
  }
  
  /** 删除按钮操作 */
  function handleDelete(row) {
    const _ids = row.id || ids.value;
    proxy.$modal.confirm('是否确认删除菜品管理编号为"' + _ids + '"的数据项？').then(function () {
      return delDish(_ids);
    }).then(() => {
      getList();
      proxy.$modal.msgSuccess("删除成功");
    }).catch(() => {
    });
  }
  
  /** 菜品口味关系序号 */
  function rowDishFlavorIndex({row, rowIndex}) {
    row.index = rowIndex + 1;
  }
  
  /** 菜品口味关系添加按钮操作 */
  function handleAddDishFlavor() {
    let obj = {};
    obj.name = "";
    obj.value = "";
    dishFlavorList.value.push(obj);
  }
  
  /** 菜品口味关系删除按钮操作 */
  function handleDeleteDishFlavor() {
    if (checkedDishFlavor.value.length == 0) {
      proxy.$modal.msgError("请先选择要删除的菜品口味关系数据");
    } else {
      const dishFlavors = dishFlavorList.value;
      const checkedDishFlavors = checkedDishFlavor.value;
      dishFlavorList.value = dishFlavors.filter(function (item) {
        return checkedDishFlavors.indexOf(item.index) == -1
      });
    }
  }
  
  /** 复选框选中数据 */
  function handleDishFlavorSelectionChange(selection) {
    checkedDishFlavor.value = selection.map(item => item.index)
  }
  
  /** 导出按钮操作 */
  function handleExport() {
    proxy.download('merchant/dish/export', {
      ...queryParams.value
    }, `dish_${new Date().getTime()}.xlsx`)
  }
  
  getList();
</script>
